| Cognac to Obernburg am Main | 524.21 mi (843.63 km) |
| Cognac to Obernkirchen | 623.20 mi (1,002.95 km) |
| Cognac to Oberschleissheim | 587.24 mi (945.07 km) |
| Cognac to Oberstdorf | 517.33 mi (832.56 km) |
| Cognac to Obertraubling | 626.36 mi (1,008.03 km) |
| Cognac to Obertshausen | 520.43 mi (837.56 km) |
| Cognac to Oberursel | 516.01 mi (830.44 km) |
| Cognac to Ochsenfurt | 554.80 mi (892.86 km) |
| Cognac to Ochsenhausen | 511.88 mi (823.79 km) |
| Cognac to Ochtrup | 563.92 mi (907.53 km) |
| Cognac to Odenthal | 502.33 mi (808.42 km) |
| Cognac to Oelde | 572.80 mi (921.83 km) |
| Cognac to Oelsnitz | 661.67 mi (1,064.85 km) |
| Cognac to Oer-Erkenschwick | 536.48 mi (863.38 km) |
| Cognac to Oerlinghausen | 595.08 mi (957.69 km) |
